Change from affirmative to negative. and make the structure

1.-the students are listening to the teacher.
2.-the girls are playing in the park.
3.-my friends is drinking chocolate.
4.-you are writing the letteers.

ayudemen coo es la structure
la estructura esta en el ultimo renglon de la respuesta


The students aren't listening to the teacher
the girls aren´t playing in the park
my friends isn´t drinking chocolate
you aren´t writing the letters

pronoun+ am,is,are+not+ verb+ing + complement